Eyeglasses.



L. P. ADT.

EYBGLASSES.

APPLICATION FILED JAN.7,1911.

1,040,103, Patented 0@t.v1,1912.

2 SHEETS-'SHEET l.

"THT

L. Ff ADT.

EYEGLASSES.

APPLICATION FILED JAN. 7, 1911.

1,040,103, t patented 00.1, 1912.

z SHEETS-SHEET a.

Leo Z'Adz 'New York, have `invented certain new and l forlitsfzobject to provide a simple and eiiispecification..

thereon. ,l My present invention relates to opticsl and mounting (usually of the rigid i UNITED sTATEs PATENT onirica. v

LEO F. ADT, or ALBANY, new Yoan.

nYEGLnssns.

. Application led January 75, 1911. Seria No. 601,298.

To all *whom it may concern: 'E -Be it known that I, LEO F. ADT, ofy Albany, in the county of Albany and State of useful Improvements in Eyeglasses; and I do hereby declare the following to be afull, clear, and exact description-of the same, reference being had to the accompanying drawings, forming a part of' this specification, and to` the reference-numerals marked more ,particularly to eyeglasses, and it has cienty eyeglass mounting of then-finger piece type composedofparts convenient both as to manufacturefand assembling. l A further object of :the invention is to produce 'an inconspicuous mounting of neat' appearance l and vone which will not collectf dirt,`,thefparts`and particularly the spring for the guardf being well protected though; easily cleaned.A Y l, 'To these and other ends the invention consists in oertainimprovements and combina-` tionsopartsiallaswill be hereinafter more fully described, the novel features being pointed out in the claims at the end of the In the drawings: Figure -1 is a front elevation of an eyeglass embodying a mounting constructed in accordance with and illustrat, ing-one embodiment of my invention; Figi` 2 is a top plan view of-'hf'lfof the same mounting showing oneunit of 'the guard mechanism; Fig. 3 is a central vertical secs'r tion through the bridge showing ,the mecha;` n'ismo Fig. 2 in side elevation; fr isf a vertical detail section, enlarged, taken sub, stanti'allyon the linee-f4 of Fig. 2;.Fig. 5 is aldetai'l .s'ectionL taken substantially on the line -fbfFig. 4p; Figs. 6 7 and 8 are respectively sectional .views corresponding to 'Figlljof the'other embodiments ofthe invention; and Figs. 9, l0. and. 11 are plan views of the same embodiments and corre-l sponding to Fig. 5, Figs; 9 and 10.being partly in section on the. lines 9.-9 and lO-lO of Fi s. 6 and 7, respectively,

Similar re erence numerals in the several figures indicate .the same parts,4 l

Referringfirst to-Figs. l to 5,.inclusi ve, indicates `the bridging .portion of the y v or ,'fsaddle variety' 1mi-his type of eyeglassb the lelis Specification of'l Letters Patent.

Patented Oct'. 1. 1912.

connecting portions or tables by lwhich the guard mechanism'sare usually, and, in the present instance, preferably, carried and as these mechanisms are practically.duplicatesV of each othera description of one will suiiice for bot-h. In thepractice of myinvention as contained inthe embodiment mentioned, the uard lever 4; is composed of fiat stock, the /orward end being'turned' downwardly at 5 to constitute a finger piece preferably having an extension 6 which serves as a screen for the actuating deviceshereinafter described and infother capacities, anfdtlie rear lend of whic'his twist'edto a ,verti-eiil plane at 7 and turned inwardly at'8 atfvvliich point therejispivoted thereto by a rivet 9,

or otherwise-,the upper and lower nose engaging pads lO'and 11 throughthe medium of an arm 12 on the' latter. The guard turns between -t-wo rigid,l parallel bearing surfaces lfffand 14, the 'former of whichpisfo'ered by the upperside of the table 'Orconnecting portionB andthe; latter bythe undfer 'side of the head orshoulder of a. nut or cap; v15; which is threaded downiup'ontheiitpper -pro` jecting-end of a post liiextending through the table. The cylindrical body 30 o the nut forms the pivotabout whichfthelguard turns and the lower end, abutting; against the table, spaces the head'l der'ritely-ronr the latter to give the guard justjsuicient room torturnV freely but at thesametime .to support iti-firmly against movement of ,any other nature..

The post 16 `is,in the present instance,

formed by thereducedend of a' screw 17 provided with a l'shoti'ldenlSthat spaces the head .19 a ixed distancefrom'theunder surface: 20 of the. .table` 3, said surface andthe proximate side Qi' of the head vconstituting opposite parallel bearing surfaces between which the guard spring 22 retained. The latter is preferably composed of a strip of sheet material wound iiatwise in a flat spiral coil to encompass the screw '17- and coperates with the guard, in the prcsent'instance,

at its outer end 23 through themedium of a dependingarm 24.- on'the guard Vthat is loosely engaged}thereby. 4"'llh'e inner end of the spring is loked to thetable by, a pro jection 25 thereon coperatingwith irn abut'- ment on the table formed" by a recess" 26 therein.

This arrangement of the spring' has several great advantagesjone of which is4 that the .convolutions of the coil., while not attachiri'gfportions and 3 the' intermediate.

vsoengaged as' to iin'parthe freedom of their .i

. lock nut for the screw 16. Attention is fur ther called'to the fact that such a construction as is provided is very easy to assemble, the spring, for instance, being rst lodged upon the screw to rest against its head, the

i screw being next thrust through the table 3,

'I within the bearing of the the guard lever placed upon its upper projecting end vandthe nut 16 being finally threaded down upon the screw and centered iard. The assembling of mountingsof t e present type, as heretofore constructed, has, in most cases, been a tiresome and dillicult operation requiring much skill and patience, and the improvement I offer in this directionis therefore considered important.

In the embodiment of the invention shown in Figs. 6' and 9, the spring 22a is placed on top of the table 3 instead of beneath it, its innerendis similarly secured by a projection 25al thereon and while one of the bearing surfaces 20fL therefor is furnished by the table, the other is constituted by the inner side`2la of a flange 26 on a washer l5 which is clamped against the table by the engagement of a shoulder 18d on a'screw 16 which may-or may not be threadedv into the washer as well as the table. The body 17a of the screw forms the pivot about which the guard lever LP turns and it is held between the top face 13 of the washer flange 26 and the under side 14 of the head 19a of the screw.

In the embodiment of Figs. 7 and 10 the spring 22h is arranged practically the same as in the embodiment of Figs. 6 and 9, but the upper bearing face 2lb is formed by the under face of a flange 2Gb that has no spacing Vor body portion 15, but rests directly upon the "convolutions of the spring. The

screw 16 has its shoulder 18h coperating with the table 3* yand the body portion .17b passes through the flange 26 and forms the pivotal bearing 'for the guard lever 4l which turns between the under face 14h of the screw head 19b andthe upper face 13b of the flange.

Figs. 8 and 11v illustrate still another construct-ioniin which the guard lever 4? turns between the upper face 13c ofthe table 3 and a shoulder 27 on the screw 16C, a second shoulder 18c coperatingwith the table to space the bearing, and the lever turns about the reduced bodyportion 17e, as before.

*"1`liep`ring 22, however, is arranged above `the levenailid. is held'between the upper face 20thereofgand the undersidelc of the head 1'9dof the screw. Y In this embodiment `he lug 25 on the `inner end of the spring C0- operates with the guard lever 4, while the outer end coperates with a stationary portion of the support, as shown at 23 in F ig. 11, the action of the 'spring being thus reversed from that of the other embodiments.

I claim as my invention:

l. In an eyeglass mounting, the combination with a support, of a pair of rigid bear- .ing surfaces, a coiled guard positioning spring wound in a flat spiral and retained between the bearing surfaces to prevent its convolutions from being displaced from the plane of the coil, a second pair of rigid bearing surfaces and a guard arranged to turn between ithem on an axis'coincident with the axis of the spiral coil.

2. In an eyeglass mounting, the combination with a support, of a. pair of rigid bea-ring surfaces, oneA of which is removable, a coiled guard positioning spring wound in a flat spiral and retained between the bear.

ing surfaces to prevent its convolutions from being d1splaced from the plane of the coil,

a second pair of rigid bearing surfaces and 3. In an eyeglass mounting, the combination with a support, of a pair of rigid bearing surfaces, a coiled guard positioning spring wound in -a flat spiral and retained between the bearing surfaces to prevent its convolutions from being displaced fromvthe general plane of the coil, a second pair of rigid bearing surfaces, one of which is removable, and a fingerpiece guard lever arranged to turn between them on an axis coincident with the axis of tlie spiral coil.

4. In an eyeglass mounting, the combination with a support, of aI pair of rigid bearing surfaces, one of which is removable, a coiled guard positioning spring wound in a flat spiral and retained between the bearing surfaces to prevent its convolutions from being displaced from the plane of the coil, a second pair of rigid bearing surfaces, one of which is removable, and a guard arranged to turn between them on an axis coincident with the axis of the spiral coil.

5. In an eyeglass mounting, the combina tion with a support, a pair of flat parallel `bearing surfaces, and a finger piece guard lever mounted to turn between the latter, of a` second pair of flat parallel bearing surfaces, a coll spring for positioning the guard Wound in a flat'spiral between the bearing surfaces and having its convolutions held by the latter against displacement from the general plane of the coil and a removable pivot fastener for the lever having a headed por- 'tion constituting one of the bearing surfaces.

6. In an eyeglass mounting, the combination with a support, a removable headed fastener mounted' thereon and a flange surrounding the fastener in spacedrelation to the head and the support and forming with each respectivelyta -pair of parallel flat bearing surfaces, of a finger piece guard lever arranged to turn about the fastener between one pair of surfaces and a spring for posi.

tioning the guard coiled in a flat spiral between the other pair of flat bearing surfaces witlr its convolutions held by the latter against displacement from the general plane of the coil.

7. In an eyeglass mounting, the combination with a support, a removable headed fastener mounted thereon and provided with a Jshoulder and a flanged tube surrounding the fastener and held betweenl the shoulder of the latter and the support with its flange in spaced relation to the latter and the head of the fast-ener to form with each, respectively,

a pair of parallel flat bearing surfaces, of a finger piece guard lever' arranged to turn about the fastener between one pair of surfaces and a spring for positioning the guard coiled in a flat spiral between the other pair of flat surfaces withits convolutions held by the latter against displacement from the general plane of the coil.

8. In an eyeglass mounting, the combina` tion with a support, a removable headed fas,

tener mountedl thereon and provided with a shoulder and a flanged tube surrounding the fastener and held between the shoulder of the latter and the support, .cfa fin er piece guard lever arranged to turn about/t e fastener between .the head thereof and the flange of the tube and a spring for positioning the guard coiled in a flat spiral about the tube and having its'convolutions held between the flange and support against displacement from the general plane of the coil, the inner end of the spring being engaged'with'the support at a. point within the circumference of the spring coil.

9. In an eyeglass mounting, the combination withv a support, a pivot fastener and a finger piece guard lever mounted to turn thereon, of a coil spring for positioning the guard wound in a' flatspiral about the axis thereof, and a detachable member separate' fastener and a flange or plate connected to the tube and disposed against the outer flat side of the spring coil and extending to the circumference thereof to cover its convolutions.

11. In an eyeglass mounting, the combination with a support, and a finger piece guard lever mounted to turn thereon, of a coil .spring for positioning the guard wound in a flat spiral about the axis thereof, a member `comprising a tubular portion within the spring coil and a flange or plate connected to the tube and disposed against the outer flat side of the spring coil and Vextending to the circumference thereof to cover its convolutions and a pivot fastener -for the guard extending through the latter and theI sleeve and haying a shoulder coperating withthe end of the sleeve to hold it against the support.

LEO F. ADT.

Witnesses: i EDWARD MURPHY, 2d, J oHN H. BRoDERIcK.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of ZPatents, Washington, D. C. 

